The number 33490
33490 is a composite number with 16 divisors. Its prime factorisation is 2 × 5 × 17 × 197. Divisors (16): 1, 2, 5, 10, 17, 34, 85, 170, 197, 394, 985, 1970, 3349, 6698, 16745, 33490.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
33490 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
33490 is composite. Its prime factorisation is
- 3
The divisors add up to 64152; without 33490 itself that is 30662, so 33490 is deficient (30662 is less than 33490). Euler's totient φ(33490) = 12544 numbers up to 33490 share no factor with it.
- 4
The digits of 33490 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 111 steps to reach 1.
LaTeX source of the formulas on this page
\[ 33490 = 2 \times 5 \times 17 \times 197 \]
33490 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 64152 |
| Euler totient φ(n) | 12544 |
| Square | 1121580100 |
| Cube | 37561717549000 |
| Square root | 183.002732 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 111 |
| Scientific notation | 3.349 × |
33490 in other forms
| Form | Value |
|---|---|
| In words | thirty-three thousand four hundred and ninety |
| Binary (base 2) | 1000001011010010 |
| Octal (base 8) | 101322 |
| Hexadecimal (base 16) | 82D2 |
| Base 3 | 1200221101 |
| As time | 33490 seconds = 9 h 18 min 10 s |
Is 33490 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (33490 ÷ 2 = 16745) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (33490 ÷ 5 = 6698) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (33490 ÷ 10 = 3349) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 33490 a prime number?
No. 33490 = 2 × 5 × 17 × 197, so it is divisible by 2.
What are the factors of 33490?
1, 2, 5, 10, 17, 34, 85, 170, 197, 394, 985, 1970, 3349, 6698, 16745, 33490.
What is 33490 in binary?
1000001011010010 (hexadecimal 82D2, octal 101322).
What is the square root of 33490?
About 183.0027.
Is 33490 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 33490?
It is a composite number with 16 divisors.